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Date of download: 6/22/2016 Copyright © ASME. All rights reserved. From: Dynamics of Flow in a Mechanical Heart Valve: The Role of Leaflet Inertia and.

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Presentation on theme: "Date of download: 6/22/2016 Copyright © ASME. All rights reserved. From: Dynamics of Flow in a Mechanical Heart Valve: The Role of Leaflet Inertia and."— Presentation transcript:

1 Date of download: 6/22/2016 Copyright © ASME. All rights reserved. From: Dynamics of Flow in a Mechanical Heart Valve: The Role of Leaflet Inertia and Leaflet Compliance J Biomech Eng. 2011;133(4):041009-041009-8. doi:10.1115/1.4003673 Schematic of the problem geometry. There is a gap between the leaflet and the left side of the sinus cavity. The length of this gap is 5×10−4H. The fluid enters from the left and exits from the right. From Gkanis and Housiadas. Figure Legend:

2 Date of download: 6/22/2016 Copyright © ASME. All rights reserved. From: Dynamics of Flow in a Mechanical Heart Valve: The Role of Leaflet Inertia and Leaflet Compliance J Biomech Eng. 2011;133(4):041009-041009-8. doi:10.1115/1.4003673 Plot of flow rate at the channel entrance as a function of time. From Stijnen. Figure Legend:

3 Date of download: 6/22/2016 Copyright © ASME. All rights reserved. From: Dynamics of Flow in a Mechanical Heart Valve: The Role of Leaflet Inertia and Leaflet Compliance J Biomech Eng. 2011;133(4):041009-041009-8. doi:10.1115/1.4003673 Plot of the valve opening angle versus time for different values of the shear modulus E. In the case of solid inertia, the shear modulus is E=108. The experimental results are from the work of Stijnen. Figure Legend:

4 Date of download: 6/22/2016 Copyright © ASME. All rights reserved. From: Dynamics of Flow in a Mechanical Heart Valve: The Role of Leaflet Inertia and Leaflet Compliance J Biomech Eng. 2011;133(4):041009-041009-8. doi:10.1115/1.4003673 Plot of the valve flow versus time for different values of the shear modulus E. In the case of solid inertia, the shear modulus is E=108. In the inset, we zoom in on the time when back-flow occurs. Figure Legend:

5 Date of download: 6/22/2016 Copyright © ASME. All rights reserved. From: Dynamics of Flow in a Mechanical Heart Valve: The Role of Leaflet Inertia and Leaflet Compliance J Biomech Eng. 2011;133(4):041009-041009-8. doi:10.1115/1.4003673 Schematic of the shape of the bottom side of the leaflet during valve opening and closing. The arrows indicate the time progress. These results are for the case of E=500. Figure Legend:

6 Date of download: 6/22/2016 Copyright © ASME. All rights reserved. From: Dynamics of Flow in a Mechanical Heart Valve: The Role of Leaflet Inertia and Leaflet Compliance J Biomech Eng. 2011;133(4):041009-041009-8. doi:10.1115/1.4003673 Plot of circulation versus time Figure Legend:

7 Date of download: 6/22/2016 Copyright © ASME. All rights reserved. From: Dynamics of Flow in a Mechanical Heart Valve: The Role of Leaflet Inertia and Leaflet Compliance J Biomech Eng. 2011;133(4):041009-041009-8. doi:10.1115/1.4003673 Plot of absolute value of the maximum wall shear stress versus time Figure Legend:

8 Date of download: 6/22/2016 Copyright © ASME. All rights reserved. From: Dynamics of Flow in a Mechanical Heart Valve: The Role of Leaflet Inertia and Leaflet Compliance J Biomech Eng. 2011;133(4):041009-041009-8. doi:10.1115/1.4003673 Force exerted on the leaflet sides in the x-direction Figure Legend:

9 Date of download: 6/22/2016 Copyright © ASME. All rights reserved. From: Dynamics of Flow in a Mechanical Heart Valve: The Role of Leaflet Inertia and Leaflet Compliance J Biomech Eng. 2011;133(4):041009-041009-8. doi:10.1115/1.4003673 Force exerted on the leaflet sides in the z-direction Figure Legend:


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